[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / nouveau / include / nvkm / subdev / mmu.h

#ifndef __NVKM_MMU_H__
#define __NVKM_MMU_H__
#include <core/subdev.h>

struct nvkm_vma {
	struct list_head head;
	struct rb_node tree;
	u64 addr;
	u64 size:50;
	bool mapref:1; /* PTs (de)referenced on (un)map (vs pre-allocated). */
	bool sparse:1; /* Unmapped PDEs/PTEs will not trigger MMU faults. */
#define NVKM_VMA_PAGE_NONE 7
	u8   page:3; /* Requested page type (index, or NONE for automatic). */
	u8   refd:3; /* Current page type (index, or NONE for unreferenced). */
	bool used:1; /* Region allocated. */
	bool part:1; /* Region was split from an allocated region by map(). */
	bool user:1; /* Region user-allocated. */
	bool busy:1; /* Region busy (for temporarily preventing user access). */
	struct nvkm_memory *memory; /* Memory currently mapped into VMA. */
	struct nvkm_tags *tags; /* Compression tag reference. */
};

struct nvkm_vmm {
	const struct nvkm_vmm_func *func;
	struct nvkm_mmu *mmu;
	const char *name;
	u32 debug;
	struct kref kref;
	struct mutex mutex;

	u64 start;
	u64 limit;

	struct nvkm_vmm_pt *pd;
	struct list_head join;

	struct list_head list;
	struct rb_root free;
	struct rb_root root;

	bool bootstrapped;
	atomic_t engref[NVKM_SUBDEV_NR];

	dma_addr_t null;
	void *nullp;
};

int nvkm_vmm_new(struct nvkm_device *, u64 addr, u64 size, void *argv, u32 argc,
		 struct lock_class_key *, const char *name, struct nvkm_vmm **);
struct nvkm_vmm *nvkm_vmm_ref(struct nvkm_vmm *);
void nvkm_vmm_unref(struct nvkm_vmm **);
int nvkm_vmm_boot(struct nvkm_vmm *);
int nvkm_vmm_join(struct nvkm_vmm *, struct nvkm_memory *inst);
void nvkm_vmm_part(struct nvkm_vmm *, struct nvkm_memory *inst);
int nvkm_vmm_get(struct nvkm_vmm *, u8 page, u64 size, struct nvkm_vma **);
void nvkm_vmm_put(struct nvkm_vmm *, struct nvkm_vma **);

struct nvkm_vmm_map {
	struct nvkm_memory *memory;
	u64 offset;

	struct nvkm_mm_node *mem;
	struct scatterlist *sgl;
	dma_addr_t *dma;
	u64 off;

	const struct nvkm_vmm_page *page;

	struct nvkm_tags *tags;
	u64 next;
	u64 type;
	u64 ctag;
};

int nvkm_vmm_map(struct nvkm_vmm *, struct nvkm_vma *, void *argv, u32 argc,
		 struct nvkm_vmm_map *);
void nvkm_vmm_unmap(struct nvkm_vmm *, struct nvkm_vma *);

struct nvkm_memory *nvkm_umem_search(struct nvkm_client *, u64);
struct nvkm_vmm *nvkm_uvmm_search(struct nvkm_client *, u64 handle);

struct nvkm_mmu {
	const struct nvkm_mmu_func *func;
	struct nvkm_subdev subdev;

	u8  dma_bits;

	int heap_nr;
	struct {
#define NVKM_MEM_VRAM                                                      0x01
#define NVKM_MEM_HOST                                                      0x02
#define NVKM_MEM_COMP                                                      0x04
#define NVKM_MEM_DISP                                                      0x08
		u8  type;
		u64 size;
	} heap[4];

	int type_nr;
	struct {
#define NVKM_MEM_KIND                                                      0x10
#define NVKM_MEM_MAPPABLE                                                  0x20
#define NVKM_MEM_COHERENT                                                  0x40
#define NVKM_MEM_UNCACHED                                                  0x80
		u8 type;
		u8 heap;
	} type[16];

	struct nvkm_vmm *vmm;

	struct {
		struct mutex mutex;
		struct list_head list;
	} ptc, ptp;

	struct nvkm_device_oclass user;
};

int nv04_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int nv41_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int nv44_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int nv50_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int g84_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gf100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gk104_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gk20a_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gm200_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gm20b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gp100_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
int gp10b_mmu_new(struct nvkm_device *, int, struct nvkm_mmu **);
#endif
Commit	Line	Data
42594600 BS	1	#ifndef __NVKM_MMU_H__
42594600 BS	2	#define __NVKM_MMU_H__
3863c9bc	3	#include <core/subdev.h>
a11c3198	4
42594600	5	struct nvkm_vma {
f9463a4b BS	6	struct list_head head;
	7	struct rb_node tree;
	8	u64 addr;
	9	u64 size:50;
	10	bool mapref:1; /* PTs (de)referenced on (un)map (vs pre-allocated). */
	11	bool sparse:1; /* Unmapped PDEs/PTEs will not trigger MMU faults. */
	12	#define NVKM_VMA_PAGE_NONE 7
	13	u8 page:3; /* Requested page type (index, or NONE for automatic). */
	14	u8 refd:3; /* Current page type (index, or NONE for unreferenced). */
	15	bool used:1; /* Region allocated. */
	16	bool part:1; /* Region was split from an allocated region by map(). */
	17	bool user:1; /* Region user-allocated. */
	18	bool busy:1; /* Region busy (for temporarily preventing user access). */
	19	struct nvkm_memory memory; / Memory currently mapped into VMA. */
	20	struct nvkm_tags tags; / Compression tag reference. */
a11c3198 BS	21	};
a11c3198 BS	22
632b740c	23	struct nvkm_vmm {
806a7335	24	const struct nvkm_vmm_func *func;
42594600	25	struct nvkm_mmu *mmu;
806a7335	26	const char *name;
eb813999	27	u32 debug;
806a7335	28	struct kref kref;
1de68568	29	struct mutex mutex;
806a7335 BS	30
	31	u64 start;
	32	u64 limit;
	33
	34	struct nvkm_vmm_pt *pd;
806a7335 BS	35	struct list_head join;
806a7335 BS	36
f9463a4b BS	37	struct list_head list;
	38	struct rb_root free;
	39	struct rb_root root;
5e075fde BS	40
5e075fde BS	41	bool bootstrapped;
806a7335	42	atomic_t engref[NVKM_SUBDEV_NR];
03b0ba7b BS	43
	44	dma_addr_t null;
	45	void *nullp;
3863c9bc BS	46	};
3863c9bc BS	47
f9463a4b BS	48	int nvkm_vmm_new(struct nvkm_device , u64 addr, u64 size, void argv, u32 argc,
	49	struct lock_class_key , const char name, struct nvkm_vmm **);
	50	struct nvkm_vmm nvkm_vmm_ref(struct nvkm_vmm );
	51	void nvkm_vmm_unref(struct nvkm_vmm **);
eb813999	52	int nvkm_vmm_boot(struct nvkm_vmm *);
f9463a4b BS	53	int nvkm_vmm_join(struct nvkm_vmm , struct nvkm_memory inst);
	54	void nvkm_vmm_part(struct nvkm_vmm , struct nvkm_memory inst);
	55	int nvkm_vmm_get(struct nvkm_vmm , u8 page, u64 size, struct nvkm_vma *);
	56	void nvkm_vmm_put(struct nvkm_vmm , struct nvkm_vma *);
eb813999 BS	57
	58	struct nvkm_vmm_map {
	59	struct nvkm_memory *memory;
	60	u64 offset;
	61
	62	struct nvkm_mm_node *mem;
	63	struct scatterlist *sgl;
	64	dma_addr_t *dma;
	65	u64 off;
	66
	67	const struct nvkm_vmm_page *page;
	68
	69	struct nvkm_tags *tags;
	70	u64 next;
	71	u64 type;
	72	u64 ctag;
	73	};
	74
f9463a4b BS	75	int nvkm_vmm_map(struct nvkm_vmm , struct nvkm_vma , void *argv, u32 argc,
	76	struct nvkm_vmm_map *);
	77	void nvkm_vmm_unmap(struct nvkm_vmm , struct nvkm_vma );
	78
c83c4097	79	struct nvkm_memory nvkm_umem_search(struct nvkm_client , u64);
f9463a4b BS	80	struct nvkm_vmm nvkm_uvmm_search(struct nvkm_client , u64 handle);
f9463a4b BS	81
c9582455 BS	82	struct nvkm_mmu {
	83	const struct nvkm_mmu_func *func;
	84	struct nvkm_subdev subdev;
	85
c9582455	86	u8 dma_bits;
0b11b30d	87
51645eb7 BS	88	int heap_nr;
	89	struct {
	90	#define NVKM_MEM_VRAM 0x01
	91	#define NVKM_MEM_HOST 0x02
	92	#define NVKM_MEM_COMP 0x04
	93	#define NVKM_MEM_DISP 0x08
	94	u8 type;
	95	u64 size;
	96	} heap[4];
	97
	98	int type_nr;
	99	struct {
	100	#define NVKM_MEM_KIND 0x10
	101	#define NVKM_MEM_MAPPABLE 0x20
	102	#define NVKM_MEM_COHERENT 0x40
	103	#define NVKM_MEM_UNCACHED 0x80
	104	u8 type;
	105	u8 heap;
	106	} type[16];
	107
0b11b30d	108	struct nvkm_vmm *vmm;
9a45ddaa BS	109
	110	struct {
	111	struct mutex mutex;
	112	struct list_head list;
f1280394	113	} ptc, ptp;
eea5cf0f BS	114
eea5cf0f BS	115	struct nvkm_device_oclass user;
c9582455 BS	116	};
	117
	118	int nv04_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
	119	int nv41_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
	120	int nv44_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
	121	int nv50_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
0f43715f	122	int g84_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
c9582455	123	int gf100_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
db018585	124	int gk104_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
d1f6c8d2	125	int gk20a_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
e1e33c79	126	int gm200_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
cedc4d57	127	int gm20b_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
b86a4587	128	int gp100_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
6359c982	129	int gp10b_mmu_new(struct nvkm_device , int, struct nvkm_mmu *);
a11c3198	130	#endif